I'm on an Apple/Mac using the new OS Yosemite and the desktop app isn't able to locate my Forerunner 305. It was plugged into the back of my computer with a usb cable. I reinstalled the app and still same issue. I ended up using the older non-supported Garmin Training Center app and it found my device so I could transfer the data from my 305 to connect.garmin.com
Anyone else having any issues with this?